(4ac^2)^3×(0,5a^3c)^2 = -(-x^2y^4)^4×(6x^4y)^2 = (2/3x^2y^3)^3×(-9x^4)^2 = (-10a^3b^2)^5×(-0,2ab^2)^5 =

(4ac^2)^3×(0,5a^3c)^2 = 64a^3c^6 * 0,25a^6c^2 = 16a^9c^8

-(-x^2y^4)^4×(6x^4y)^2 = x^8y^16 * 36x^8y^2 = 36x^16y^18

(2/3x^2y^3)^3×(-9x^4)^2 = (8/27)x^6y^9 * 81x^8 = 648/27x^14y^9 = 24x^14y^9

(-10a^3b^2)^5×(-0,2ab^2)^5 = 100000a^15b^10 * 0,00000032a^5b^10 = 32000a^20b^20